bobby-soxer 
noun North American informal, dated
A teenage girl.This is a bittersweet Golden Age of speakeasies, hoods, the Great Depression, squealing bobby-soxers, lynchings, jitterbugging, novelty tunes and early moves toward racial integration....
- Along with the famous poodle skirts and ponytails, saddle shoes, penny loafers, and colored sneakers were popular with teenaged bobby-soxers.
- With timing so flawless and a tenor so strong he made bobby-soxers swoon and tough guys cry, the awkward kid from Hoboken became the standard bearer for almost all aural bliss.